Table 2.
Prevalence and associated factors for four risk behaviors, stratified by sex, among adolescents from the 1993 Pelotas (Brazil) Birth Cohort study: 2008 follow-up.
| Risk factors | Smoking | Alcohol intake | Low fruit intake | Physical inactivity | Males (n = 1936) |
Females (n = 2054) |
||||
|---|---|---|---|---|---|---|---|---|---|---|
| O (%) | E (%) | O/E (95%CI) | O (%) | E (%) | O/E (95%CI) | |||||
| 4 | + | + | + | + | 1.5 | 0.4 | 3.6 (2.8–4.5) | 2.7 | 1.1 | 2.4 (1.8–3.1) |
| 3 | + | + | + | − | 0.6 | 0.3 | 1.8 (1.3–2.5) | 0.6 | 0.2 | 3.4 (2.7–4.3) |
| + | + | − | + | 0.5 | 0.2 | 3.3 (2.6–4.2) | 0.7 | 0.5 | 1.5 (1.0–2.1) | |
| + | − | + | + | 0.7 | 1.4 | 0.5 (0.3–1.0) | 1.5 | 3.1 | 0.5 (0.2–0,9) | |
| − | + | + | + | 8.2 | 8.9 | 0.9 (0.5; 1.4) | 11.9 | 15.2 | 0.8 (0.5; 1.3) | |
| 2 | + | + | − | − | 0.3 | 0.1 | 2.6 (1.9–3.4) | 0.3 | 0.1 | 4.0 (3.2–;4.9) |
| + | − | − | + | 0.3 | 0.5 | 0.6 (0.3–1.1) | 0.6 | 1.3 | 0.5 (0.2–0.9) | |
| + | − | + | − | 0.6 | 1.1 | 0.5 (0.3–1.0) | 0.2 | 0.5 | 0.4 (0.2–0.8) | |
| − | + | + | − | 6.8 | 6.9 | 1.0 (0.6–1.5) | 3.3 | 2.4 | 1.4 (1.0–2.0) | |
| − | + | − | + | 2.5 | 3.2 | 0.8 (0.4–1.3) | 5.9 | 6.4 | 0.9 (0.5–1.4) | |
| − | − | + | + | 31.9 | 30.7 | 1.0 (0.6–1.5) | 43.5 | 41.4 | 1.1 (0.7–1.7) | |
| 1 | + | − | − | − | 0.2 | 0.4 | 0.5 (0.3–1.0) | 0.3 | 0.2 | 1.5 (1.0–2.1) |
| − | + | − | − | 2.3 | 2.5 | 0.9 (0.5–1.4) | 1.6 | 1.0 | 1.6 (1.1–2.2) | |
| − | − | + | − | 23.2 | 23.7 | 1.0 (0.6–1.5) | 6.7 | 6.5 | 1.0 (0.6–1.6) | |
| − | − | − | + | 11.0 | 11.1 | 1.0 (0.6–1.5) | 16.8 | 17.5 | 1.0 (0.6–1.6) | |
| 0 | − | − | − | − | 9.7 | 8.6 | 1.1 (0.7–1.7) | 3.6 | 2.7 | 1.3 (0.9–1.9) |
O: observed; E: expected.
+ Factor present ; − Factor absent.